Testing and modelling of material behaviour and formability in sheet metal forming

S Bruschi, T Altan, D Banabic, PF Bariani, A Brosius… - CIRP Annals, 2014 - Elsevier
The paper deals with the testing and modelling of metals response when subjected to sheet
forming operations. The focus is both on the modelling of hardening behaviour and yield …

Ductile fracture experiments with locally proportional loading histories

CC Roth, D Mohr - International Journal of Plasticity, 2016 - Elsevier
Basic ductile fracture experiments for sheet metal (or flat coupons extracted from bulk
material) are presented to characterize the onset of fracture at different stress states. Special …

A review of cruciform biaxial tensile testing of sheet metals

R Xiao - Experimental Techniques, 2019 - Springer
Biaxial testing technology enables the comprehensive study of sheet-forming performance
and has great potential developmental and commercial value. This work is a review of …

Effect of cruciform specimen design on strain paths and fracture location in equi-biaxial tension

R Zhang, Z Shao, Z Shi, TA Dean, J Lin - Journal of Materials Processing …, 2021 - Elsevier
Hot stamping technologies require new methods for evaluating formability of sheet metal
under various forming conditions. Biaxial tensile testing method using a cruciform specimen …

Cruciform specimen design and verification for constitutive identification of anisotropic sheets

N Deng, T Kuwabara, YP Korkolis - Experimental Mechanics, 2015 - Springer
A novel cruciform specimen design is proposed, which is a composite of existing specimens.
The typical shortcomings of many existing designs are that the strains achievable in the test …

Formability evaluation for sheet metals under hot stamping conditions by a novel biaxial testing system and a new materials model

Z Shao, N Li, J Lin, T Dean - International Journal of Mechanical Sciences, 2017 - Elsevier
Hot stamping and cold die quenching has been developed in forming complex shaped
structural components of metals. The aim of this study is the first attempt to develop unified …

Experimental study on the mechanical properties of AZ31B-H24 magnesium alloy sheets under various loading conditions

Y Jia, Y Bai - International Journal of Fracture, 2016 - Springer
In order to fully characterize the plasticity and fracture of magnesium AZ31B-H24 sheets, a
set of mechanical experiments (105 in total) were performed under different loading …

Characterization of forming limits at fracture with an optimized cruciform specimen: Application to DP600 steel sheets

X Song, L Leotoing, D Guines, E Ragneau - International Journal of …, 2017 - Elsevier
In order to identify experimental limit strains at fracture for metallic sheets under in-plane
biaxial loadings, a specific specimen shape has to be defined. Ideally, the proposed …

Development of a new biaxial testing system for generating forming limit diagrams for sheet metals under hot stamping conditions

Z Shao, N Li, J Lin, TA Dean - Experimental Mechanics, 2016 - Springer
Conventional experimental approaches used to generate forming limit diagrams (FLDs) for
sheet metals at different linear strain paths are not applicable to hot stamping and cold die …

[HTML][HTML] Evaluation of Hoffman and Xia plasticity models against bi-axial tension experiments of planar fiber network materials

M Alzweighi, R Mansour, J Tryding… - International Journal of …, 2022 - Elsevier
The anisotropic properties and pressure sensitivity are intrinsic features of the constitutive
response of fiber network materials. Although advanced models have been developed to …